MARYLAND FLOW REPORT

Last Updated: January 2, 2026

Maryland's river systems are currently experiencing lower-than-average streamflow conditions, with notable reductions in flow across major waterways, which may impact river recreation and aquatic ecosystems. Data indicates that the Susquehanna River at Conowingo and the Potomac River near Washington, D.C., both vital to the state's water network, are flowing at significantly reduced rates of 6710 cfs (31.57% change in the last 24 hours) and 2260 cfs (2.26% change) respectively, with current measurements well below normal at -89.89% and -87.25%. This diminished flow could affect recreational activities such as fishing and boating, particularly in popular destinations like the Potomac's whitewater trails near Point of Rocks and the Susquehanna's Conowingo area.

Streamflow in smaller rivers, such as the Patuxent River near Bowie and the Monocacy River near Frederick, also show sizeable decreases with flows at 126 cfs (-74.13% of normal) and 148 cfs (-91.97% of normal) respectively. Such low flows may lead to flow droughts, potentially impacting both local water supplies and riverine habitats. The North Branch of the Potomac River, an important watershed for the western region of Maryland, is reporting low streamflow from Steyer to Cumberland, which could signal the onset of ecological stress in these areas. In contrast, Conococheague Creek at Fairview exhibited a slight increase in streamflow over the past 24 hours but remains significantly below its typical levels. While the current conditions suggest a low risk of flooding, the sharp decline in water levels across these critical rivers warrants attention from water enthusiasts and conservationists, as prolonged trends may lead to broader environmental consequences.